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Abstract: We model the optical visibility of monolayer and bilayer graphene depositedon a silicon-silicon oxide substrate or thermally annealed on the surface ofsilicon carbide. We consider reflection and transmission setups, and find thatvisibility is strongest in reflection reaching the optimum conditions when thebare substrate transmits light resonantly. In the optical range of frequenciesa bilayer is approximately twice as visible as a monolayer thereby making thetwo types of graphene distinguishable from each other.



Autor: D. S. L. Abergel, A. Russell, Vladimir I. Fal'ko

Fuente: https://arxiv.org/







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